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1999 Electric motor cycle

This project was an exercise

I had a 24" bicycle, one car battery and one starter

It required to bring all together and to see the result

The starter needed one big modification

In fact this kind of motor has no bearing on the output shaft

It required to build an aluminum flabby to hold the bearing

The second problem was to maintain the pinion on the output shaft

The third problem was to maintain the 52 teeth pinion on the rear wheel

I have solved the problem with one piece made of Epoxy with 1,6 mm thickness

The forth problem was to maintain the starter to the frame of the bicycle

I have used one piece of U shape steel

It was drilled and maintained to the frame with one piece of aluminum

The frame of the bicycle was sandwiched between these pieces

The starter was maintain to the U shape piece with one metallic bridle

In the center of the image the aluminum pieces for bearing modification

Motor support

 

 

The test process focuses me on tree problems related to this kind of system :

  • No recuperated energy when activating the brake (free wheel of bicycle)

  • Working of the starter in ON/OFF mode

  • Excessive heating of the starter

 

 

 

Technical data :

  • 31 Mph Maximum speed

  • 77 lb Weight.

  • Car starter

  • 75 Ah, 12 V Battery

  • Motor drive in ON/OFF mode

  • 15 % Maximum slope

 

Last modification : 12 février 2012 Copyright © 1996 - 2011 www.amidesign.ch Contacts : FaceBook - YouTube - Picasa